Thrust Block for watermain fitting
Thrust Block for watermain fitting
(OP)
Hello,
How do you calculate how much concrete you need for each bends on watermain installation? For example: how much CY of concrete do I need for 16" 45 degree bend?
Thanks for reading.
How do you calculate how much concrete you need for each bends on watermain installation? For example: how much CY of concrete do I need for 16" 45 degree bend?
Thanks for reading.
RE: Thrust Block for watermain fitting
RE: Thrust Block for watermain fitting
Link
Thrust blocks were generally used on unrestrained connections (bell and spigot) for underground work. Most piping is now restrained in some manner using restraints such as megalugs.
Thrust blocks have fallen out of favor because thrust block design is based on unknown characteristics of soils.
The preferred thrust restraint will be mechanical restrained joints. You should forget the thrust blocks and use these restrained pipe joints. Restrained pipe joint design will be simpler and the end results are more reliable as you do not know the soil conditions or the method that Contractor will use to install the thrust blocks. Most Contractors don't install thrust blocks properly, they typically just throw a bag of cement behind the elbow.
Thrust Block Design
RE: Thrust Block for watermain fitting
It is a requirement to install concrete thrust blocks by Engineers and SUDAS.
I am still looking for an answer on how much CY would you calculate for each bend? is there a formula?
Thanks again.
RE: Thrust Block for watermain fitting
RE: Thrust Block for watermain fitting
Fred